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Finding the Fourth Proportional to 118,151.76, 163,043.68 and 70,404.04

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Solution

The fourth proportional to 118,151.76, 163,043.68 and 70,404.04 is: 97,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,151.76 : 163,043.68 = 70,404.04 : x
  2. Step 2: Convert to fraction form
    118,151.76/163,043.68 = 70,404.04/x
  3. Step 3: Cross multiply
    118,151.76x = 163,043.68 × 70,404.04
  4. Step 4: Simplify right side
    118,151.76x = 11,478,933,768.47
  5. Step 5: Solve for x
    x = 11,478,933,768.47/118,151.76
  6. Step 6: Final answer
    x = 97,154.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.